Kerry: US-Russia plan 'may be last chance to save Syria'

US Secretary of State John Kerry on Monday urged Syria’s warring parties to observe a US-Russian brokered ceasefire and warned it could be the last chance to save the country. Just hours after the truce came into effect, Kerry said it must hold in order to salvage any hope of the political settlement he said was the only way to end the war. Kerry and his Russian counterpart Foreign Minister Sergei Lavrov announced Friday they had agreed on a plan to impose a cessation of hostilities across Syria, where more than 290,000 people have been killed since 2011.